Methods, systems, and devices for wireless communications are described. Some wireless communications networks may implement aspects of a single frequency network (SFN), which may support multicast and broadcast transmissions. In some cases, a base station may use directional beamforming techniques to transmit a message to a user equipment (UE) using a first frequency configuration of the SFN. The base station may adjust the first frequency configuration to a second frequency configuration, and may transmit a retransmission of the message to the UE using the second frequency configuration.
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4. The method of claim 2, wherein the first frequency configuration comprises a first set of tones allocated for the broadcast message and the second frequency configuration comprises a second set of tones allocated for the at least one retransmission of the broadcast message that are different than the first set of tones.
11. The method of claim 10, wherein the negative acknowledgement comprises a retransmission request associated with the broadcast message.
12. The method of claim 1, wherein the at least one retransmission is transmitted automatically.
A system and method for automatic retransmission of data in wireless communication networks addresses the problem of unreliable data delivery due to signal interference, fading, or other transmission errors. The invention provides a mechanism to automatically retransmit data packets that fail to reach their destination, improving communication reliability without requiring manual intervention. The method involves detecting failed transmissions, identifying the specific data packets that were not successfully delivered, and automatically retransmitting those packets. The retransmission process may include adjusting transmission parameters such as power, frequency, or modulation to enhance the likelihood of successful delivery. The system may also prioritize retransmissions based on the importance or urgency of the data. By automating the retransmission process, the invention reduces latency and ensures timely data delivery in environments where communication reliability is critical, such as industrial control systems, medical devices, or autonomous vehicle networks. The automatic retransmission feature eliminates the need for user intervention, improving efficiency and reducing operational overhead. The method may be integrated into existing communication protocols or implemented as a standalone module within a wireless network infrastructure.
14. The method of claim 1, wherein the single frequency network channel comprises a multimedia broadcast single frequency network channel.
24. The method of claim 23, wherein the negative acknowledgement comprises a retransmission request associated with the broadcast message.
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November 24, 2020
October 18, 2022
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